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  2. Emner i filosofi
  3. Filosofi: metafysik og ontologi

Background Independence in Classical and Quantum Gravity

Af: Dr James Read Engelsk Hardback

Background Independence in Classical and Quantum Gravity

Af: Dr James Read Engelsk Hardback
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It is often claimed that Einstein''s magnum opus---his 1915 theory of General Relativity---is distinguished from other theories of space and time in virtue of its background independence. It''s also often claimed that background independence is an essential feature of any quantum theory of gravity. But are these claims true? This book aspires to offer definitive answers to both of these questions, by (a) charting the space of possible definitions of background independence, and (b) applying said definitions to various classical and quantum theories of gravity. The outcome, in brief, is as follows: General Relativity is not unique by virtue of its background independence (and, indeed, fails to be background independent on some popular definitions); moreover, the situation in the case of quantum theories of gravity is delicate, because (i) there are viable such theories which (by some accounts, at least) fail to be background independent, but also (ii) theories (e.g. perturbative string theory) which have often been dismissed for (allegedly) being background dependent in fact, on many accounts, are better classified as background independent. In giving these answers in rigorous detail, this book seeks to elevate the standards and generality of future discussions of background independence in the foundations of spacetime theories.
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It is often claimed that Einstein''s magnum opus---his 1915 theory of General Relativity---is distinguished from other theories of space and time in virtue of its background independence. It''s also often claimed that background independence is an essential feature of any quantum theory of gravity. But are these claims true? This book aspires to offer definitive answers to both of these questions, by (a) charting the space of possible definitions of background independence, and (b) applying said definitions to various classical and quantum theories of gravity. The outcome, in brief, is as follows: General Relativity is not unique by virtue of its background independence (and, indeed, fails to be background independent on some popular definitions); moreover, the situation in the case of quantum theories of gravity is delicate, because (i) there are viable such theories which (by some accounts, at least) fail to be background independent, but also (ii) theories (e.g. perturbative string theory) which have often been dismissed for (allegedly) being background dependent in fact, on many accounts, are better classified as background independent. In giving these answers in rigorous detail, this book seeks to elevate the standards and generality of future discussions of background independence in the foundations of spacetime theories.
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Se mere i:
Produktdetaljer
Sprog: Engelsk
Sider: 160
ISBN-13: 9780192889119
Indbinding: Hardback
Udgave:
ISBN-10: 0192889117
Kategori: Filosofi: metafysik og ontologi
Udg. Dato: 1 jan 1900
Længde: 17mm
Bredde: 241mm
Højde: 163mm
Forlag: Oxford University Press
Oplagsdato: 1 jan 1900
Forfatter(e): Dr James Read
Forfatter(e) Dr James Read

Kategori Filosofi: metafysik og ontologi

ISBN-13 9780192889119

Sprog Engelsk

Indbinding Hardback

Sider 160

Udgave

Længde 17mm

Bredde 241mm

Højde 163mm

Udg. Dato 1 jan 1900

Oplagsdato 1 jan 1900

Forlag Oxford University Press

Kategori sammenhænge